The front window in our 19 is fantastic, probably the one we view out of the most. Ours is dual glazed though with the old style rock guard.
I would definitely get the window in the 21 if I had one. Light does not bother me at all for sleeping if I need to sleep when it is light out (which is usually just naps), and if you want, you can close it up. The best of both worlds.
What is the upgrade price?
2017 Escape 5.0 TA (someday soon, I hope
2015 Ford F150 Lariat 3.5L EcoBoost
2009 Escape 19 (previous)
“Most folks are about as happy as they make up their minds to be.” — Abraham Lincoln